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Department of Homeland Security NAICS 237310 and PSC Y1AZ contractors

Highway, Street, and Bridge Construction. CONSTRUCTION OF OTHER ADMINISTRATIVE FACILITIES AND SERVICE BUILDINGS. Use this deeper buyer cross-code page to see which visible contractors sit in the overlap between these two lanes under Department of Homeland Security.

Department of Homeland Security · NAICS 237310 · PSC Y1AZ
Last updated: April 7, 2026

Visible recipients

5

Mapped obligations

$1,695,367,751

State overlap

3

Top recipients

Visible recipients in the Department of Homeland Security overlap of NAICS 237310 and PSC Y1AZ

Whiting-turner Contracting Company, The

Towson, MD

Whiting-turner Contracting Company, The is a federal category business profile based in Towson, MD. The current public data layer shows $614,842,352 in visible federal obligations across 232 awards or transactions. Department of Defense appears as the strongest visible awarding agency. Top industry concentration is in NAICS 236220 (Commercial and Institutional Building Construction). The profile also shows meaningful product and service activity in PSC Y1JZ.

$443,781,957

Rq Construction, LLC

Carlsbad, CA

Rq Construction, LLC is a federal category business profile based in Carlsbad, CA. The current public data layer shows $348,957,024 in visible federal obligations across 120 awards or transactions. Department of Defense appears as the strongest visible awarding agency. Top industry concentration is in NAICS 236220 (Commercial and Institutional Building Construction). The profile also shows meaningful product and service activity in PSC Y1JZ.

$610,618,440

Harper Construction Company, Inc.

San Diego, CA

Harper Construction Company, Inc. is a federal category business profile based in San Diego, CA. The current public data layer shows $277,967,049 in visible federal obligations across 51 awards or transactions. Department of Defense appears as the strongest visible awarding agency. Top industry concentration is in NAICS 236220 (Commercial and Institutional Building Construction). The profile also shows meaningful product and service activity in PSC Y1BZ.

$364,687,286

Tutor Perini Corporation

Sylmar, CA

Tutor Perini Corporation is a federal category business profile based in Sylmar, CA. The current public data layer shows $7,919,316 in visible federal obligations across 38 awards or transactions. Department of Defense appears as the strongest visible awarding agency. Top industry concentration is in NAICS 236220 (Commercial and Institutional Building Construction). The profile also shows meaningful product and service activity in PSC Y199.

$230,492,272

Doyon Project Services, LLC

Federal Way, WA

Doyon Project Services, LLC is a federal alaskan native corporation owned firm profile based in Federal Way, WA. The current public data layer shows $152,245 in visible federal obligations across 5 awards or transactions. Department of Defense appears as the strongest visible awarding agency. Top industry concentration is in NAICS 236220 (Commercial and Institutional Building Construction). The profile also shows meaningful product and service activity in PSC Y199.

$45,787,796